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Step 9: Outer Sheathing

With the four walls all framed, it is time to sheath the outside. Since you took so much care in making the studs regularly spaced the sheathing should fly by. You will want to swap out the 16D nails in the nailer for 8D nails at this point. Exterior grade OSB has an inner and outer side. This makes more of a difference when roofing as the outer side is textured to improve traction when walking on it. However, the other feature of the outer side is a painted grid of 16" and 24" spaced lines to allow you to hit the studs underneath when nailing. Make sure this side is out and you will save yourself some headaches.

The easiest way to sheath your walls is to sheathe right over the small door and window openings. Once they are nailed in place someone working from the inside can drill holes at the corners, come around to the outside, and using a jigsaw or reciprocating saw connect these holes to open up the windows and doors. Presto chango!

While sheathing, you will need to put nails in every 6-8" or so on the edges and on the interior studs. Check your local codes. With 24" stud spacing there will only be one interior stud. The hardest part is to hit the studs when your studs are off of the painted grid on the OSB. You can also have a spotter inside to tell you if you are missing the studs. This is no big deal if you are going to insulate and close up the wall cavities, but if you plan on leaving the interior walls open you will want to pound those nails back out so you don't cut yourself later down the road. Your spotter can do that while you nail.

Since my walls are about 8' 5" tall a single sheet of 4'x8' OSB will not cover the whole wall. My approach was to start the panel at the sill plate and to run the panel vertically, leaving the last 5 inches or so open. The goal here is to stiffen up the walls with the sheathing so you can put on the roof. If you are so inclined you can have someone following the nailer with strips of OSB to fill these gaps or wait for later. However, they can only do the "flat" walls since on the gable ends the sheathing will need to extend up to the peak of the roof trusses.

See the pics below to get an idea of what the garage will look like with this lower course of OSB on.

Another thing to note is that the South wall on my garage has no windows. When you build within a certain distance of the property line (3 feet) in Minneapolis and elsewhere you cannot have windows or doors in the wall. Additionally, I had to cover the exterior studs with fire-rated exterior drywall rather than OSB on the wall facing my neighbor's property. The drywall also had to extend all the way to the lower surface of the roof deck. The interior wall on this side also had to be fire-rated drywall in order to prevent a fire in my garage from spreading to the neighbor's. Check your local code, and read this document for more information.

With the lower 8' of the garage sheathed, it is time to put on the roof trusses.

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<p>This is awesome, such a thorough guide!</p><p>Also, great advice there in Step 11, I guess you learn something new every day.</p>
<p>Do you know how long a project like this usually takes? My sister and her husband have been wanting to build a garage outside their home for the past few weeks but they are traveling for the summer. They are trying to decide when would be the best time and how long it would take. I will have to pass these tips on to them though, thank you . </p><p>&lt;a href='http://www.toplinegarages.com.au/' &gt;&lt;/a&gt;</p>
The concrete takes a few days to do and then you need to let it cure a bit. Talk to the contractor on that, my guess is a week. <br><br>For us in MN, the best time to build is in September since it is still warm, one of the driest months, and less bugs. <br><br>If you have a slab with block and bolts for your sill plates, all the materials on-hand, a good set of plans, and a capable crew of 4-5 you could get the walls up, sheathed, windows in and the roof trussed and shingled in a weekend. After that, a day for electrical, a day for doors, and a day or two for siding. You could have a basic garage like mine done in a week. You only really need a crew for the walls and roof, I did the rest on my own on weekends and it took like 4 weekends or about 8-10 days of hard work.
<p>Would it be easier to do in the summer? I'm not sure if they have enough time with their jobs and kids to work on it themselves so it might be beneficial to hire someone for help. Although, doing it on the weekends seems like a great option. That way, friends and family can come and help if needed. </p>
<p>Please stop spamming Instructables.</p>
I want to build a 24x24 garage but do it in two steps. Is it safe to use a 12 foot 2x4 wall with the ridge pole on top of that and install the rafters to just one half. I plan to build a second 12x24 section next summer. My concern is whether the roof will be strong enough with just one half built. I was planning on a 6-12 pitch. My roof framework is 2x6 roof joists on 24&quot; centers and the walls are 2x4 on 12&quot; centers.
That was very informative and I liked your humor throughout. I have framed a couple small additions to my cabin in the past, using a framing book for guidance. I feel very comfortable building a garage myself now. My only change to your instructions, will be to use PBR, rather then Miller lite. Thanks for your great instructions.
Just wondering if you had checked into metal roofing (like I've seen installed on primitive cabins). It seems like it would go on a lot faster, but perhaps I'm wrong.
Does rebar just lie there on the gravel or is it elevated to be surrounded by concrete? If lifted, what with? Does rebar have to be tied?
Hi <br>The rebar must be elevated enough so the gravel that is contained in the wet concrete will fit under it. The minimum is 1&quot; and the maximum, for a 4&quot; thick concrete, should be 1-1/2&quot;. If you've got old concrete blocks, you can break them and use the pieces as supports, but make sure you tie the rebar to these or they'll fall off while pouring concrete! Other items would be used bricks, pieces of concrete. NO organic materials that will decompose should be used! If you want to spend some $ and do it nicely, go to a contractors supply house and ask for 'rebar chairs'. These come individually and in 5' strips, which can be cut to short pieces. <br> <br>Yes, the rebar needs to be tied together. This helps to keep it in place while you're pouring the wet concrete, and it does give strength. <br>The rebar must also overlap where it is tied/spliced together. The rule for how much overlap is: 18 x Diameter (in inches). So if you're using 1/2&quot; diameter rebar, 18 x 1/2&quot; = 9 inch overlap. If using #6 bar (rebar is named in 1/8&quot;, so #6 = 6/8&quot; or 3/4&quot; diameter) the required minimum overlap is 18 x .75, or 12&quot; overlap.
Building your own garage is tough. As soon as we got do the garage doors part of it I just let the pros come install it. <a href="http://www.thedoorworks.ca" rel="nofollow">garage doors</a>

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